Hose-coupling.



F. HACHMANNf HOSE COUPLING.

APPLICATION FILED ocT.26.1914.

1,241,626. Patented 061;. 2,1917.

3 SHEETS--SHEET l- F. HACH'MANN.

HOSE COUPLING.

APPLICATION mw ocT. 26. 1914.

1,241,626. Patented oct. 2,1917.

3 SHEETS-SHEET 2.

WIWI!! l'illlllllllmllllmlill F. HACHMANN.y

HOSE COUPLING.

APPucATloN man ocT. 26. 1914.

1,241,626. Patented oct. 2,1917.

3 SHEETS-SHEET 3- UNITED sTATEs PATENT oEEIoE.

FREDERICK HAGHMANN, 0F ST. LOUIS, MISSOURI, ASSIGNOR 0F ONE-HALF T0 FREDC. SCHOENTHALER, OF ST. LOUIS, MISSOURI.

HOSE-COUPLING.

Speeication. of Letters Patent.

Patented Oct. 2, 191 '7.

Application led October 26, 1914. Serial No. 868,658.

'provide a hose coupling which can be used to connect two sections ofhose, to connect a hose to the source of supply, and to form anendconnection w1th a nozzle.

Another object is to provide a hose couplingwhich is simple inconstruction and operation, effective in its action, which consists of afew parts, and is cheap to manufacture. c A

Further objects will appear from the detail description taken inconnection with the accompanying drawings, in which:

Figure 1 is an elevation of a coupling connecting two hose sections;

Fig. 2 is a section of Fig. 1;

Fig. 3 is an elevation illustrating an end connection;

Fig. 4 is a section of Fig. 3;

Fig. 5 is an elevation of another end connection;

Fig. 6 is a section of Fig. 5;

Fig. 7 is a section on the line 7 7, Figs. 2 or 4;

Fig. 8 is a detail of the sleeve shown in Figs. 1 to 4 inclusive;

Fig. 9 is a detail of the sleeve shown in Figs. 5 and 6;

Fig. 10 is a detail section on the line io-io, Fig. 9;

Fig. 11 is an elevation of a coupling connecting two hose sections, andshowing another embodiment of this invention;

Fig. 12 is a section of Fig. 11;

Fig. 13 is an elevation illustrating an end connection of anotherembodiment of this invention;

Fig. 14 is a section of Fig. 13;

Fig. 15 is an elevation of another' end connection, showing anotherembodiment of this invention;

Fig. 16 is a section of Fig. 15;

Fig. 17 is a section on the line 1775-17, Figs. 12 or `14;

Fig. 18 is a detail of the sleeve shown in Figs. 11 to 14 inclusive;

Fig. 19 is a detail of the sleeve shown in Figs. 15 and 16;

Fig. 20 is a 4detail section on the line 20-20, Fig. 19;

Fig. 21 is a detail of a sleeve showing still another embodiment of thisinvention;

Fig. 22 is a detail section on the' line 22, Fig. 21;

Fig. 23 is a detail of a wedge, showing another embodiment of thisinvention;

Fig. 24 is an elevation of a coupling connect-ing two hose sections, andshowing another embodiment of this invention;

Fig. 25 is a section of Fig. 24;

Fig. 26 is an elevation illustrating an end connection of another'embodiment of this invention;

Fig. 27 is a section of Fig. 26;

Fig. 28 is a section on the line 28-28, Figs. 24 and 26;

Fig. 29 is a detail of the sleeve shown in Figs. 24 and 26;

Fig. 30 is a detail of the wedge; and,

Fig. 31 is an enlarged detail section on the line 31-31, Fig. v30,showing the hose and nipple.

Referring to the accompanying drawings, and more particularly, to Figs.1, 2, 7 and 8, 10 designates a nipple having annular enlargements orshoulders 11 at its ends, the ends of the nipple being tapered to permittheir ready insertion into the ends of the hose sections 12, Theshoulders 11 form annular enlargements 13 on the hose sections. Themeans for clamping the hose sections on the nipple comprises a splitsleeve having provisions for contracting the same to clamp it upon thehose. This sleeve consists of a pair of sections or halves 14,preferably formed of sheet metal, and having inwardly projecting endflanges 15, and

' ribs 16 struck therefrom to project inwardly and extending axially ofthe sleeve sections. Each sleeve section is provided with a longitudinallip or flange 17, formed by bending the edge of the metal outwardly andcircumferentially.' Each lip is slightly shorter than the sleeve itself,and has an inclined outer edge. A wedge or clamping member 18, alsopreferablyformed of sheet metal, has flanges 19 bent inwardly to embracethe lips 17, the llauges being slightly shorter than the wedge, and thewedge being slightly longer than the lips 17, so as to project beyondthe same when in position. The wedge acts as a clamping member to con@tract the sleeve sections and clamp them ou the hose.

To use the device to couple two hose sections, the hose sections to bejoined are first applied over the ends of the nipple, thereby causingthe shoulders 11 to expand the hosel and 'form the annular enlargements13.

One of the clamping members 18 is now slipped partly into position on apair of the lips 17 for holding the two sections of the split sleeve, asshown in Fig. 8, and the sleeve is thus placed around the hose, theconnection between the lips and the clamping wedge being sufficientlyflexible to permit such application. The other wedge is now passed overthe lips on the opposite side and slid along the lips longitudinally ofthe sleeve, thereby causing a partial contraction of this sleeve. Thefirst named wedge is now pushed completely home on the lips in the samemanner, thereby causing the sleeve to be fully contracted so as tofirmly clamp the hose sections 'to the nipple.

'Ihe sleeve and nipple are so proportioned as to cause the end flangeson the sleeve to be positioned at the bases of the annular enlargements13, as clearly shown in Fig. 2. Moreover, the .contracting of the sleevecauses the end flanges to sink into the rubber hose, so as to obtain afirm grip on the hose and clamp the hose firmly between the nippleshoulder and the flange. The longitudinal ribs 16, which also sink intothe hose, prevent rotation of the hose .sections with 'respect to eachother and with respect to the nipple and sleeve, so that the hosesections cannot be Worked apart by rotative move! ment. After the wedgesor'clamping members are in place, they may be locked in positionicy-hammering over 'one or both ends, as shown at 20.V

In Figs. 3 and 4, the invention is shown applied to 'an end coupling.The end coupling member 25, which is threaded to receive an internallythreaded member, suchas a nozzle, has a nipple 26, which is adapted tobe inserted into the hose section 12. This nipple has an annularshoulder, and is otherwise of the construction shown in Fig. 2.

The hose is clamped to the nipple by a clamping sleeve of the sameconstruction as shownin Figs. 1, 2, 7 and 8, and like parts aredesignated by like reference characters. The clamping action issubstantially the same in both cases, and further description is,therefore, unnecessary.

In Figs. 5 and 6 is shown a coupling for making a connection to anexternally threaded member, such as, a faucet. The coupling member 30is, in this case, provided with a nipple 26 of the same construction asshown in Fig. 4. In order to make the connection between this sheetmetal nipple and the coupling member 30, which is usually constructed ofcast metal, the nipple is passed through the coupling member and flangedover, as shown at 31, so as to lie against the flange 32 of the couplingmember 30, thereby forming a firm connection. The connection between thenipple 26 and the coupling member 25 is not shown, but it will beunderstood that it is similar to that shown in Figs. 5 and 6. The hosecan be clamped on the nipple of Figs. 5 and 6 by the same clamping'sleeve as shown in Figs. 1 to 4 inclusive and 7 and 8, and the actionwill,

in this case, be, of course, the same. The

specific construction of the clamping sleeve is, however, shown indetail in Figs. 9 and 10. In this construction, the sleeve sections 14have one set of the edges thereof bent over, as shown at 33, so as toform lips. These lips are, however, considerably shorter than the lips17, and the edges thereof are straight, and not inclined. A plate 34 hasan oblong opening-35 therein, so as to form a link. This link is slippedover the lips 33 before they are bent down, and the lips are then bentover the link by a die to permanently but flexibly connect thel sleevesec-v tions. These sleeve sections are contracted by means of a Wedge18, similar in construction and operation to that shown in Figs. 1 t0 4inclusive and 7 and 8. The clamping sleeve is otherwisey of the sameconstruction as shown in Figs. 7 and 8.

In order to apply this clamping sleeve, the sections are spread apart,on their hinge connection, so as to encircle the hose, the connectionbeing sufficiently flexible to pers mit this. The wedge 18 is thenslipped on the lips 17, so as to contract the sleeve, to clamp the hoseagainst the inside face of the shoulder 11. It will be understood thatthe clamping sleeve shown in Figs. 5 and 6 can be used for the. otherend connection, or as a mender for connecting two sections of hose, inthe same manner as shown in Figs. 1 to 4 inclusive.

Inthe construction shown in Figs. 1 to 10 inclusive the clamping sleeveis s0 designed as to clamp the hose against the inside faces of theshoulders 11. In the construction shownin Figs. 11 lto 30 inclusive, nowto be described, the sleeve is so constructed as to grip the hose onboth sides of the annular enlargements, and so as to clamp the hoseagainst both faces of the annular shoulders on the nipple. In theconstruction shown in Figs. 11.to 30 inclusive, the devices are againillustrated as applied for joining two hose sections, and for making theend connections.

' The nipples and end connections are practt ence characters as used inFigs. 1 to 10 inclusive; a detail description'of the similar parts will,therefore, be omitted.

Referring, first, to Figs. 11, 12, 17 and 18, 40 designates a air ofsleeve sections which are adapted to orm together a split clampingsleeve. This sleeve also is preferably constructed of sheet metal, andhas inwardly projecting flanges 41, and ribs 42 struck therefrom toproject inwardly, and extending axially of the sleeve sections. Thesleeve is further provided with inwardly projecting lugs 48 struck fromthe metal, and extending circumferentially around the sleeve, betweenthe ribs 42 and the flange 41. The lips 43 have the inclined outeredgesl coperating with the wedge or clamping member 44, which hasflanges 45 taking under the lips 43.

The device is applied to the hose in the same manner as the device shownin Figs. 1 and 2. After the wedgel 44 is in position, it is locked inthe same manner as that heretofore described by bending or hammeringover the forward edge 46. The wedge may be provided, at its forward end,with a short lug 47, as shown in Fig. 23, which lug can be readily bentdown to securely lock the wedge in clamping position. It will be notedthat, when the clamping sleeve is clamped on the hose, as shown in Fig.12, the

iiange 41 will engage the hose on one side of the annular enlargement13.while the inwardly projecting lugs 48 will engage the hose on the otherside of the annular enlargement. This ange and these lugs will,therefore, coperate with the annular shoulder to securelyclamp the hoseagainst the vopposite faces offthe shoulder. Furthermore, the ribs 42,as well as the lugs 48, will sink into the hose and press it tightlyagainst the nipple, so as to not only form a tight joint, but alsoprevent'rotation of the hose sections with respect to each other.

In Figs. 13 and 14, the device is shown applied to the end connection,the clamping sleeve 'being of the same construction as shown in Figs. 11and 12. It will be unders stood that this clamping sleeve ma also beapplied to the hose to form the en connections of Figs. 15 and 16.

In Figs. 15, 16, 19 and 20, is shown a.

form of clamping sleeve incorporating the hinge connection shown inFigs. 9 and 10. In this construction, the lips 50 coperate with the link51, apertur'ed as shown at 52 to receive -the lips,y so as to formapermanent but iiexible connection between the sleeve sections. Thesleeve sections are clamped on the hose by means of a wedge 44, themethod of application and operation being similar as described for theconstruction shown in Figs. 9 and 10.

Figs. 21 and 22 show another form of hinge connection between thesectlons, In

this construction, one section is provided with a slot 55 and anoutstruck rib 56 in front of the slot. The other section is providedwith a tongue 57 which is bent to take over the rib 56, passes throughthe slot, and is bent under, as shown in Fig. 22, to form a fiexibleconnection between the sections.v The provision of the rib 56 furnishesa recess to receive the end of the tongue 57 when the sleeve is openedto encircle the hose, and the bent-under lip 57 forms a rib sinking intothe rubber hose, in the same manner as the ribs 42. The sleeve isclamped on the hose by means of a wedge 44, and the method ofapplication is the same as described in the embodiment shown in Figs. 19and 20. The parts-are so constructedfthat, when the sleeve is clampedon'the hose, the sections 40 will form, in effect, a continuous sleeve.It will be understood that this hinge connection may be applied to theconstructions shown in Figs. 1 to 10 inclusive.

It will be noted that in all of the constructions las heretoforedescribed, the coupling comprises a nipple having an annular shoulder orshoulders adapted to be inserted into andV expand the hose, a splitsheet metal sleeve, adapted to encircle the hose, and having an inwardlyprojectin flange or flanges ladapted to coperate wit the nipple and theshoulder thereon, to clamp thehose transversely and against longitudinalmovement, and a sheet metal taper key engaging lips 17 at the edges ofthe sleeve, so as to contact the sleeve on the hose and against thenipple. Upon referring more particularly to Figs. 8 and 18, however, itwill be noted that the lips 17 and 43, respectively, do not run from endto end of the sleeve edges, but terminate short distances from the endsof the sleeves, and inside yof the ianges 15 and 41, respectively. Theresult is, therefore, tha-t there is a yielding connection between theianges on one hand, and the taper key on the other hand, so that whenthe taper key is driven in place, the metal will yield, due to theinherent elasticity of the sheet metal material, so as to cause thesleeve to yieldingly clamp the hose on the nipple. This is important inthat the sleeve can adapt itself to inequalities in the hose, and to twoendwise joint hose sections, which are not of exactly the same diameter.

Referrin now to Fi 24 to 31 inclusive, the hinged y connecte sheet metalsleeve sections 60 are provided with inwardly projecting end flanges l61, and inwardy projecting ribs 62 extending circumferentially aroundthe sections. Lips 63 on one section engage slots 64 on the othersection to form the hinge connection. The ribs 62 on one section haveextensions or'tongues 65, adaptled to pass underneath the other section.

These rib extensions or tongues taper to points as Shown in FlgS. 27,28, 29 and 31,

and are of channel form to engage and wedge under the ribs on thecoperating section. The lips or anges 66 are bent outwardly from thesections, and their edges may be inclined, as shown in Fig. 29. A wedgeor key 67 of sheet metal has its edges bent inwardly to'form ianges 68ada ted to take under the flanges 66, and the e ges of these flanges areinclined to engage the junctions of the anges66 with the sections. rl`heforward ends of the flanges 68 are preferably rounded, as shown at 69,and the enlds of the lips 66 are also rounded, as shown in Fig. 29, tofacilitate the engagement of the key with the flanges on the sections.The rear end of the key has lugs 70 bent downwardly to engage one endange 61, and limit the movement of the key, and the forward end of thekey has a lu 71 adapted to be bent over the other end ange and lock thedkey in operative position. The key is Istruck up as shown at 72 to forma rib. increasing in depth from the forward to the rear end of the key.The purpose of this rib is to impart elasticity to the key, causing thekey to give, as it is passed over the anges, and lthereby result in auniform tension and clamping action ofthe sections on the hose. The keyis provided with a hole 73 adapted to be engaged by a tool to withdrawthekey. All parts are made of sheet metal and formed by stamping. Thedevice is applied to the hose in the saine manner as in the otherconstructions. The parts are so constructed that the end ange 61 willlie on one side of the enlargement 13, while the ribwill lie on theother side. The contracting of the sleeve sections will cause both angeand rib to sink into the rubber, clamp thehose against the nipple onboth sides of the enlargement, and make a tight joint. The tongues 65 onone section wedging underneath the other section, will not only make thejoint tight, but will cause a clampin \action through 360. Theelasticity o the key causes the flanges and ribs to clamp the hoseuniformly on both ends.

- It will thus be seen thatthe invention accomplishes its objects. Adevice is produced which is not only simple in`construction andoperation, but also has a universal application. Since the sleeve ismade of two iexibly connectedv sections, a uniform clamping action isobtained, and the sleeve can be readily passed over the hose, since theconnection between the anges or lips 17,- 33, 43, vand 50, and thewedges 18 and 44, and platesl 34 and 51, and the hinge connections 55,56-and 63, 64 is Iiexible enough for thatpurposeL- The parts lcan bereadily formed of 'sheetl metal by simple die operations. When thedevice 1s in position on the hose, it will not only forni a tight joint,but

will also be devoid of projecting parts. The 6617199 @all be applied toform a mender naeiae and it is, therefore, to be understood that this.

invention is not to be limited to the specific construction `shown anddescribed.

Having thus described the invention, what is Iclaimed is: i

1. A hose coupling comprising a split sheet metal sleeve having itsedges bent over to form longitudinally extending lips, inwardlyprojecting-hose engaging flanges on said sleeve, and a, slidingl sheetmetal member having bent over anges adapted to take over said lips,constructed to yieldingly contract said sleeve.

2. A hose coupling comprising a split sleeve adapted to encircle a hose,inwardly projecting hose engaging anges on said j sleeve, and a yieldingmember adapted to engage the opposed free edges of said sleeve tocontract the same, said yielding member adapting the sleeve to -hose ofdi'erent sizes or thiclmesses.

3. A hose coupling comprising a split sleeve adapted to encircle a hose,inwardly projecting hose engaging anges on said sleeve, and a memberadapted to engage the opposed free edges of said sleeve to consleeveadaptedV to encircle a hose, an inwardly projecting end flange on saidsleeve, and a sliding taper key adapted to engage the free ends of saidsleeve to contract the same, said key having a struck up rib extendingtherealong to render it yielding.

6. A hose coupling comprising a split sleeve adapted to encircle a hose,inwardly projecting end flanges on said sleeve, and a sliding taper keyadapted to engage the free ends of said sleeve to contract the same,said key having a struck up rib extending therealong and increasing indepth from end to end to render it yielding.

7. A hose coupling comprising a split sheet metal sleeve having inwardlyextending hose engaging portions struck therefrom and having its opposededges bent to form projecting lips, and a sliding sheet metal 'memberhaving bent over anges serted into and expand the hose, a split sheetmetal sleeve adapted to encircle the hose and having an inwardlyprojecting ange adapted to coperate with said nipple and the shoulderthereon 'to clamp the hose transversely' and against longitudinalmovement, and a sheet metal taper key adapted to contract said sleeve,said parts being constructed and arranged to yieldingly clamp the hose.

` 10. A hosefmender comprising a nipple having enlarged annularshoulders adjacent its ends adapted to expand the hose sections atpoints remote from their meeting ends, a split sheet metal sleeveadapted p to encircle the hose and having inwardly projecting angesadapted to coperate With said nipple and the shoulders thereon to clampthe hose transversely and against longitudinal movement, and a sheetmetal taper ikey adapted to contract said sleeve, said parts beingconstructed and arranged to yieldingly clamp the hose.

l1. A hose coupling comprising a nipple having an annular shoulderadapted to be inserted into and expand the hose and form an annularenlargement thereon, a split sheet metal sleeve adapted to encircle thehose and having an inwardly projecting flange adapted to engage the hoseadjacent the annular enlargement and coperate with said nipple and theshoulder thereon to clamp the hose transversely and against longitudinalmovement, and means for con.- tracting said sleeve, constructed andarranged to yieldingly clamp the hose on said nipple.

12. A hose mender comprising a nipple having enlarged annular shouldersadjacent its ends adapted to expand the hose sections at points remotefrom their meeting ends and form annular enlargements thereon, a splitsheet metal sleeve adapted to encircle the hose and having inwardlyprojecting flanges adapted to engage the hose adjacent the annularenlargements and coperate with said nipple and the yture in the presenceof these two Witnesses.

FREDERICK HACHMANN. Witnesses:

ARTHUR B. CREMEB, MA'rrHEW L. MAs'rnN.

